diff --git a/builder/main.py b/builder/main.py
index a73e5a6..96b7da1 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -18,7 +18,7 @@ platform: PlatformBase = env.PioPlatform()
 board: PlatformBoardConfig = env.BoardConfig()
 
 python_deps = {
-    "ltchiptool": ">=4.12.0,<5.0",
+    "ltchiptool": ">=4.12.2,<5.0",
 }
 env.SConscript("python-venv.py", exports="env")
 env.ConfigurePythonVenv()